Photographic-printing apparatus.



No. 727,670- PATENTED MAY I2, 1903.`

H. H. MGINTIRE.

PHOTOGRAPHIG PRINTING APPARATUS.

APPLICATION FILED. MAY 19, 1902.

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No. 727 670. PATENTBD MAY 12, 1903. f H. H. MGINTIRE. q l

.OIA'OGRAPHIG PRINTING APPARATUS.

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PATENT OFFICE.m

HERVEY H.l MCINTIRE, OF SOUTH BEWWHJMMT PHOTOGRAPHIC-PRINT'INGAPPARATUS.

SPECIFICATION forming part of Letters Patent No. 727,670, dated May 12,1903. Application nea May 19, 1902. sean No. 108,120. ci@ man.)

To all whom it may concern:

Be it known that I, HERvEY H. MCINTIRE, a citizen of the United Statesof America, residing at South Bend,-in the county of St. Joseph andState of Indiana, have invented a Photographic-Printing Apparatus, ofwhich the following is a specification.

This invention relates to a machine for printing photographs. f

The object of the invention is to print a number of photographs from thesame negative by successive applications of the tympan to the negative,the tympan being automatically brought into engagement with the negativesimultaneously with the admission of light to the case in which thenegative is contained.

Other objects are to provide a rock-shaft to which the platen andlight-controlling means are connected and an arm on the rock-shaftadapted to be adjusted with relation to its operating mechanism so thatit may be operated for a longer or shorter predetermined period, andthereby enable the machine to be used with different kinds of sensitizedpaper requiring longer or shorter exposures.

With these objects in view the invention consists in the novelconstruction, combination, and aggroupment of parts, as will be morefully described hereinafter and finally pointed out in the appendedclaims.

In the accompanying drawings, forming part of this specification, Figure1 is a longitudinal vertical section of the apparatus complete. Fig. 2is a front elevation with the top of the casing broken away.

In carrying out my invention I mount the mechanism in a suitable case orcabinet 1, supported by a frame 2 and having suitable gearing orbelt-pulleys IWI, mounted thereon, which are driven by any motor power.In the back of the case is a compartment 3, adapted to contain a sourceof light, which in the present instance comprises two incandescentelectric lamps G G, the light from which is adapted to be automaticallyadmitted to the cabinet or shut off from the same atV predeterminedintervals by the mechanism hereinafter described. In the sides of thecasing is mounted a cylinder K, composed of aplurality of segmentaldisks k, each disk having slots 7s' of equal length and at equaldistances apart, so that the segments of each disk are of equal length,but each disk having a differentnumberof segments and slots.

The segments of any one of the disks are vof the rock-shaft 'andextending upwardly at right angles therefrom are arms C, having apivoted connection with link D, which are in turn pivoted to avibratingframe E, carrying at its end a platen N, which is composed of a fixedpart n and a hinged end n', adapted to be bent backwardly by theoperator while the tympan or photographic paper is being held theretoand which is normally held parallel with the fixed part n by means of aSpring H.

Secured to the rock-shaft and extending downwardly into the case is alever A, adapted to vibrate when the shaft is rocked and operate themechanism for admitting or eX- cludiug the light. This mechanism may bean electric switch for making and breaking the circuit of an electriccurrent or, as illustrated in the drawings, a` shutter B, pivoted tq thetop of the compartment 3 and having an offset arm Z1, against which theleverA engages to lift the shutter, as shown in dotted lines in Fig. 1.A spring-arm a is secured to the rock-shaft I, extends down parallelwith the lever A', and is engaged near its free end by a pin a.

The front of the case is closed by an inclined face-board P, having anopening in which the negative F is mounted, the said negative being heldtherein by a frame composed of a plurality of arms L, pivoted to theface-board at diderent points and carrying 'blocks Z at their free end,in which a negative may be clamped, and thus adapt the machine forprinting from any-sized negative. When only one-sized negatives areused, the face-board may be provided with an inwardlyturned flange paround the edge of the opening, as shown in Fig. 1.

The bottom of the cabinet is covered by a mirror or other reflector O,which is inclined downwardly from the face-board P at the proper angleto reiect the rays of light onto the negative.

The operation is as follows: The gearing M drives the cylinder K at auniform speed, and when the trip-arm J has been adjusted on therock-shaft I to aposition 4opposite any one of the disks k the said armwill be engaged by the segments on the disk. Each disk having adifferent number of slots 7C' and different-sized segments between theslots a longer or shorter period of operation for the trip-arm may beprovided and the same predetermined by means of a scale t' on the frontof the frame E, the number opposite each disk being the number of unitsof time the trip-arm will be in engagement with the segments on saiddisks, so that the machine may be set to operate successfully with allkinds of photographic paper requiring long or short exposures. As thearm is tripped the plate N, through the medium of the arms C and linksD, descends and brings the tympan into engagement with the negative, andsimultaneously with this action the source of light in the compartment 3is admitted to the cabinet and refiected on the negative by the mirrorO, the same being operated by the arm A, as before described. As thedisk 7c continues to rotate the slot 7c will come in alinement with thetrip-arm, Which Will be immediately returned to its normal position bythe spring a, the platen N will be elevated, the arm A lowered, and thesource of light cut off, as shown in full lines in Fig. l, When themachine is ready for the next operation.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is-

1. In a photographic-printing apparatus, a case having means to hold anegative therein, an intermittently-operated platen, anintermittently-admitted light, mechanism for bringing the platen intoengagementwith the negative and for synchronously admitting the light tothe case, and an adjustable device oil said mechanism for changing theduration of time for the admission of the light and for the engagementof the platen With the negative.

2. `In a photographic-printing apparatus, a case having means to hold anegative therein, a vibratory platen, a light adapted to beintermittently admitted to and shut out from the case With eachvibration of the platen, a rocking member for operating the platen andfor admitting the light to the case, and means on the rocking member forchanging the duration of time for the admission of the light and for theengagement of the platen with the negative.

3. A photographic-printing apparatus consisting of a case having meansto hold a negative therein, a rock-shaft in the case, an adjustabletrip-arm ou said rock-shaft, means to operate the trip-arm atpredetermined intervals, means tccontrol a source of light to the case,mechanism carried by the rock-shaft to operate the light-controllingmeans, mechanism carried by the rock-shaft to bring and hold the tympanin engagement with the negative synchronously with the admission of thelight, and means carried by the rock-shaft to automatically return theparts to their normal position.

4. In a photographic-printing apparatus,- the combination ot a casehaving a face-board to hold a negative, a source ot light in said case,a rock-shaft having an adjustable triparm and an arm to control theadmission of the light, a revoluble cylinder having segments adapted toengage the trip-arm, a vibratory frame carrying a platen adapted tobring the tympan in engagement With the negative, aconnection betweenthe frame and the rock-shaft and a spring on the rock-shaft to returnthe parts to their normal position.

5. Aphotographic-printingapparatus,com prising a case, the front ofwhich is provided with an opening, means to hold a negative in theopening, a compartment having a light therein, a shutter to control theadmission of light to the case, a revoluble cylinder composed of aplurality of disks having slots and segments of different lengths, arock-shaft, a trip-arm on the rock-shaft adapted to be adjusted to beoperated by any disk, a platen, and shutter-operating mechanismextending from opposite sides of the rock-shaft to operate the shutterand platen synchronously, and a spring to retract the parts.

6. In a photographic-printing apparatus, a case provided With anadjustable negativesupporting frame, a vibrating platen adapted to beintermittently engaged With the negative, a light adapted to beintermittently admitted to the case, means for operating the platensynchronously With the admission of light, and means for automaticallyreturning the parts to their normal position.

7. In a photographic-printing apparatus, a case provided with anadjustable negativesupporting frame consisting of arms pivoted to thecase and carrying clamping-blocks at their free ends.

S. In a photographic-printing apparatus, a case having its face-boardprovided with a negative-support adapted to hold dierentsized negatives,said support consisting of arms pivoted to the case and carryingclamping-blocks at their free ends.

9. In a photographic-printing apparatus, a case havingan inclinedface-board provided With a negative-support, a compartment formed at theback of the case for containing a light, a reflector arranged at anangle to the face-board and extending from the lower end thereof to thebottom of the light-compari@V ment and means for intermittentlyadmitting the light to the case.

l0. Inaphotographic-printingapparatus,a case provided with means to holda negative therein, a light adapted to be intermittently admitted to thecase, a rock-shaft, a platen operated by said rock-shaft, an arm on therock-shaft to control the admission of light, means for rocking theshaft and a trip-armen IOC the rock-shaft adapted to be adjusted tochange the duration of time for the admission of light and for theengagement of the platen with the negative.

11. In a photographic-printingapparatus,a case provided with means tohold a negative therein, a light adapted to be intermittently admittedto the case, a revoluble cylinder having segments of different length, arockshaft provided With an adjustable arm adapted to be tripped by thesegments, a platen operated by said rock-shaft, an arm on the rock-shaftto control the admission of the light to the case synchronously with theoperation of the platen, and means to automatically return the parts totheir normal position.

12. In a photographic-printing apparatus, the combination With a casehaving a negative and a light-containing compartment therein, of arock-shaft having arms extending in opposite directions, a platenconnected to one of the arms and the other arm adapted to control theadmission of light to the case, a trip-arm on the rock-shaft, and aplurality of revoluble disks each having segments of dierent lengthadapted to engage the triparm, and means to adjust the trip-arm oppositeany one of the disks to change the duration of time for the admission oflight and for 3o the engagement of the platen with the negative.

13. Aphotographic-printingapparatus consisting of a case provided withmeans to hold a negative therein, a rock-shaft having arms 35 extendingin opposite directions, a light-compartment having a shutter adapted tobe engaged by one of the arms, a platen-frame jointedly connected withthe other arm, a platen on the frame, a trip-arm on the rock- 4o shaft,a revoluble cylinder composed of a plurality of disks each havingsegments of different lengths adapted to engage the trip-arm to rock theshaft, means to permit the trip-arm to be adj usted opposite any disk,and a spring 45 on the rock-shaft to return the parts to their normalposition.

A. D. HARRIS, LOUISE HANAUER.

